Overview Flashcards
Sperms and ovum carry
Haploid number of chromosomes
Pregnancy kits used when a woman misses her period to detect presence of ?
HCG in urine
During later stages of pregnancy progesterone is produced by the
Placenta
Which of the following is derived from the mesoderm?
Pectoralis major (muscle)
After fertilization ____ stimulates the corpus luteum to continue secreting progesterone
Human chorionic gonadotropin (HCG)
The ampulla of the fallopian is the site for ?
Fertilization
At which stage is embryonic development does implantation occur?
Blastocyst
Which of the following united with sperm during fertilization?
Secondary oocyte
The embryonic membrane sac that completely encloses the fetus and contains a watery fluid is the
Amniotic sac
Which of the below processes results in a larger number of cells in developing embryos?
Cleavage
Place the following terms into their correct time sequence
Fertilization
Blastocyst
Morula
Zygote
Implantation
Development of chorionic villi
The correct sequence for the above is fertilization, zygote, morula, blastocyst, implantation and development of chorionic villi
The first stage of labor is
From the onset of uterine contractions til complete dilation of the cervix
The nervous system is derived from
Ectoderm
Fraternal twins are always of the same sex
False
Stacy’s last menstrual cycle was January 7th. Her expected date of delivery is most likely to be?
In October
The genotype rr indicates that both alleles are _____ and they are both ____
Homozygous and recessive
A recessive trait has to be inherited in the homozygous form in order to manifest
True
Xc is the gene for color blindness and XC is the normal gene for color vision. In order for a girl to suffer from color blindness her genotype should be
XcXc
Gene mutation affecting the sex chromosomes in the mother would tend to be visibly expressed
More frequently in male offspring
A man and a woman have had several children but none of them are boys. They go to the doctor, who tells them in each pregnancy there is a 50% chance of conceiving a boy, and only one of the parents determines the sex of the baby. Which parent?
Father
An individual who has a recessively inherited disease can be symbolized as
aa
The gene for parkinson’s disease is dominant. If a person who is heterozygous for this train mates with a person who is also heterozygous for this trait the probability will be affected
75%
Steve and Emily are expecting their second baby. They already have a son. What are their chances of another son this pregnancy?
50%
Cystic fibrosis is a recessive autosomal disorder. Mom is homozygous with dominant alleles. Dad is heterozygous. What percent offspring will be afflicted and what percent will carry defective alleles
0, 50
Sertoli cells in the testes are responsible for
Supporting and nourishing sperm
The testis are present in the scrotum because they need a higher temperature in order to function
False
The function of the testes is the production of
Sperm and male hormone testosterone
The seminal vesicles
Produced a secretion rich in fructose
The secretion of the prostate gland are poured into the
Urethra
The normal mature human spermatozoan contains
23 chromosomes
The cells that construct the blood testis barrier and provide nourishment for spermatogenic cells are
Sustentacular cells
What is the normal sperm count
50 million to 100 million
Which of the following statements applies to the testis correctly
The tunica vaginalis covers the testis
Which of the below areas is the primary region of sperm storage and maturation
Epididymis
Spermatozoa are produced in which of the following structures
Seminiferous tubules
The gland that provides alkaline nutritive fluid for the sperm is the
Seminal vesicle
When the uterus is bent anteriorly over the cervix it is said to be
Anteverted
All of the following about the human female process of reproduction are true, except
Rebuilding the endometrium after menstruation is under the control of prolactin
All of the following are true about the mammary gland except
Lies posterior to the pectoralis major muscle
Which of the following statements is TRUE about the fallopian tube?
The cilia of the fallopian tube set up currents which help propel the zygote
The later of the uterus responsible for contraction is the
Myometrium
The posterior wall of the vagina is related to the
Rectum
The function of the fimbria of the fallopian tube is to?
Grab the secondary oocyte as soon as ovulation occurs
Fertilization of the secondary oocyte by sperm occurs normally in which area
Uterine tube
Women are more prone to osteoporosis after menopause sets because
The levels of estrogen and progesterone decline
The outcome of meiosis is to
Produce haploid gametes
Which of the following will occur following ovulation
The endometrium enters the secretory phase
Maturation occurs when
Blood levels of estrogen and progesterone decrease
During the secretory phase of the menstrual cycle
Progesterone levels are at their highest
Which of the following does NOT occur after ovulation
The uterus secretes estrogen and progesterone
Preparation and maintenance of the endometrium for embryo implantation is the major function of which hormone
Progesterone
The cells needed to provide spermiogenesis are
Interstitial, spermatogenic and Sertoli
Rising levels of FSH stimulate
The ovarian follicles to develop
The release of the secondary oocyte from the ovary is called
Ovulation
